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PatchSiren cyber security CVE debrief

CVE-2026-11047 Google CVE debrief

A critical vulnerability, CVE-2026-11047, was discovered in Google Chrome on Windows. This issue, rated as Medium by Chromium but scoring a 9.6 CVSS score, could allow a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Vendor
Google
Product
Chrome
CVSS
CRITICAL 9.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-23
Advisory published
2026-06-04
Advisory updated
2026-07-23

Who should care

Users of Google Chrome on Windows, particularly those who may be targeted by remote attackers, should be aware of this vulnerability.

Technical summary

The vulnerability is due to an inappropriate implementation in the Base component of Google Chrome. Successful exploitation could allow an attacker to escape the sandbox, potentially leading to arbitrary code execution or other malicious activities.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Ensure that all users of Google Chrome on Windows are aware of this vulnerability and take steps to update their browsers.

Evidence notes

This CVE was published on June 4, 2026, and modified on June 8, 2026. The vulnerability affects Google Chrome on Windows prior to version 149.0.7827.53.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11047 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11047

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11047 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11047

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.